feat: establish reservation portal foundation

database/migrations/2026_08_04_000100_create_identity_tables.php

@@ -0,0 +1,59 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    public function up(): void
+    {
+        Schema::create('roles', function (Blueprint $table) {
+            $table->id();
+            $table->string('name')->unique();
+            $table->string('description')->nullable();
+            $table->timestamps();
+        });
+
+        Schema::create('permissions', function (Blueprint $table) {
+            $table->id();
+            $table->string('name')->unique();
+            $table->string('description')->nullable();
+            $table->timestamps();
+        });
+
+        Schema::create('permission_role', function (Blueprint $table) {
+            $table->foreignId('permission_id')->constrained()->cascadeOnDelete();
+            $table->foreignId('role_id')->constrained()->cascadeOnDelete();
+            $table->primary(['permission_id', 'role_id']);
+        });
+
+        Schema::create('role_user', function (Blueprint $table) {
+            $table->foreignId('role_id')->constrained()->cascadeOnDelete();
+            $table->foreignId('user_id')->constrained()->cascadeOnDelete();
+            $table->primary(['role_id', 'user_id']);
+        });
+
+        Schema::create('external_identities', function (Blueprint $table) {
+            $table->id();
+            $table->foreignId('user_id')->constrained()->cascadeOnDelete();
+            $table->string('provider');
+            $table->string('provider_subject');
+            $table->string('tenant_id')->nullable();
+            $table->string('provider_email');
+            $table->json('claims')->nullable();
+            $table->timestamp('last_login_at')->nullable();
+            $table->timestamps();
+            $table->unique(['provider', 'provider_subject']);
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::dropIfExists('external_identities');
+        Schema::dropIfExists('role_user');
+        Schema::dropIfExists('permission_role');
+        Schema::dropIfExists('permissions');
+        Schema::dropIfExists('roles');
+    }
+};